// Copyright (C) 2023 Toitware ApS.
// Use of this source code is governed by a Zero-Clause BSD license that can
// be found in the tests/LICENSE file.

import expect show expect-equals
import crypto.sha
import tls

// Test vectors from https://mailarchive.ietf.org/arch/msg/tls/fzVCzk-z3FShgGJ6DOXqM1ydxms/

main:
  sha224-test
  sha256-test
  sha384-test
  sha512-test

sha224-test:
  SECRET := #[
      0xe1, 0x88, 0x28, 0x74, 0x03, 0x52, 0xb5, 0x30,
      0xd6, 0x9b, 0x34, 0xc6, 0x59, 0x7d, 0xea, 0x2e,
  ]
  LABEL := "test label"
  SEED := #[
      0xf5, 0xa3, 0xfe, 0x6d, 0x34, 0xe2, 0xe2, 0x85,
      0x60, 0xfd, 0xca, 0xf6, 0x82, 0x3f, 0x90, 0x91,
  ]

  output-88 := tls.pseudo-random-function_ 88 --block-size=sha.Sha224.BLOCK-SIZE --secret=SECRET --label=LABEL --seed=SEED:: sha.Sha224

  expect-equals #[
      0x22, 0x4d, 0x8a, 0xf3, 0xc0, 0x45, 0x33, 0x93,
      0xa9, 0x77, 0x97, 0x89, 0xd2, 0x1c, 0xf7, 0xda,
      0x5e, 0xe6, 0x2a, 0xe6, 0xb6, 0x17, 0x87, 0x3d,
      0x48, 0x94, 0x28, 0xef, 0xc8, 0xdd, 0x58, 0xd1,
      0x56, 0x6e, 0x70, 0x29, 0xe2, 0xca, 0x3a, 0x5e,
      0xcd, 0x35, 0x5d, 0xc6, 0x4d, 0x4d, 0x92, 0x7e,
      0x2f, 0xbd, 0x78, 0xc4, 0x23, 0x3e, 0x86, 0x04,
      0xb1, 0x47, 0x49, 0xa7, 0x7a, 0x92, 0xa7, 0x0f,
      0xdd, 0xf6, 0x14, 0xbc, 0x0d, 0xf6, 0x23, 0xd7,
      0x98, 0x60, 0x4e, 0x4c, 0xa5, 0x51, 0x27, 0x94,
      0xd8, 0x02, 0xa2, 0x58, 0xe8, 0x2f, 0x86, 0xcf]
      output-88

sha256-test:
  SECRET ::= #[
      0x9b, 0xbe, 0x43, 0x6b, 0xa9, 0x40, 0xf0, 0x17,
      0xb1, 0x76, 0x52, 0x84, 0x9a, 0x71, 0xdb, 0x35,
  ]
  LABEL ::= "test label"
  SEED := #[
      0xa0, 0xba, 0x9f, 0x93, 0x6c, 0xda, 0x31, 0x18,
      0x27, 0xa6, 0xf7, 0x96, 0xff, 0xd5, 0x19, 0x8c
  ]

  output-100 := tls.pseudo-random-function_ 100 --block-size=sha.Sha256.BLOCK-SIZE --secret=SECRET --label=LABEL --seed=SEED:: sha.Sha256

  expect-equals #[
      0xe3, 0xf2, 0x29, 0xba, 0x72, 0x7b, 0xe1, 0x7b,
      0x8d, 0x12, 0x26, 0x20, 0x55, 0x7c, 0xd4, 0x53,
      0xc2, 0xaa, 0xb2, 0x1d, 0x07, 0xc3, 0xd4, 0x95,
      0x32, 0x9b, 0x52, 0xd4, 0xe6, 0x1e, 0xdb, 0x5a,
      0x6b, 0x30, 0x17, 0x91, 0xe9, 0x0d, 0x35, 0xc9,
      0xc9, 0xa4, 0x6b, 0x4e, 0x14, 0xba, 0xf9, 0xaf,
      0x0f, 0xa0, 0x22, 0xf7, 0x07, 0x7d, 0xef, 0x17,
      0xab, 0xfd, 0x37, 0x97, 0xc0, 0x56, 0x4b, 0xab,
      0x4f, 0xbc, 0x91, 0x66, 0x6e, 0x9d, 0xef, 0x9b,
      0x97, 0xfc, 0xe3, 0x4f, 0x79, 0x67, 0x89, 0xba,
      0xa4, 0x80, 0x82, 0xd1, 0x22, 0xee, 0x42, 0xc5,
      0xa7, 0x2e, 0x5a, 0x51, 0x10, 0xff, 0xf7, 0x01,
      0x87, 0x34, 0x7b, 0x66]
      output-100

sha384-test:
  SECRET ::= #[
      0xb8, 0x0b, 0x73, 0x3d, 0x6c, 0xee, 0xfc, 0xdc,
      0x71, 0x56, 0x6e, 0xa4, 0x8e, 0x55, 0x67, 0xdf,
  ]
  LABEL ::= "test label"
  SEED ::= #[
      0xcd, 0x66, 0x5c, 0xf6, 0xa8, 0x44, 0x7d, 0xd6,
      0xff, 0x8b, 0x27, 0x55, 0x5e, 0xdb, 0x74, 0x65,
  ]

  output-148 := tls.pseudo-random-function_ 148 --block-size=sha.Sha384.BLOCK-SIZE --secret=SECRET --label=LABEL --seed=SEED:: sha.Sha384

  expect-equals #[
      0x7b, 0x0c, 0x18, 0xe9, 0xce, 0xd4, 0x10, 0xed,
      0x18, 0x04, 0xf2, 0xcf, 0xa3, 0x4a, 0x33, 0x6a,
      0x1c, 0x14, 0xdf, 0xfb, 0x49, 0x00, 0xbb, 0x5f,
      0xd7, 0x94, 0x21, 0x07, 0xe8, 0x1c, 0x83, 0xcd,
      0xe9, 0xca, 0x0f, 0xaa, 0x60, 0xbe, 0x9f, 0xe3,
      0x4f, 0x82, 0xb1, 0x23, 0x3c, 0x91, 0x46, 0xa0,
      0xe5, 0x34, 0xcb, 0x40, 0x0f, 0xed, 0x27, 0x00,
      0x88, 0x4f, 0x9d, 0xc2, 0x36, 0xf8, 0x0e, 0xdd,
      0x8b, 0xfa, 0x96, 0x11, 0x44, 0xc9, 0xe8, 0xd7,
      0x92, 0xec, 0xa7, 0x22, 0xa7, 0xb3, 0x2f, 0xc3,
      0xd4, 0x16, 0xd4, 0x73, 0xeb, 0xc2, 0xc5, 0xfd,
      0x4a, 0xbf, 0xda, 0xd0, 0x5d, 0x91, 0x84, 0x25,
      0x9b, 0x5b, 0xf8, 0xcd, 0x4d, 0x90, 0xfa, 0x0d,
      0x31, 0xe2, 0xde, 0xc4, 0x79, 0xe4, 0xf1, 0xa2,
      0x60, 0x66, 0xf2, 0xee, 0xa9, 0xa6, 0x92, 0x36,
      0xa3, 0xe5, 0x26, 0x55, 0xc9, 0xe9, 0xae, 0xe6,
      0x91, 0xc8, 0xf3, 0xa2, 0x68, 0x54, 0x30, 0x8d,
      0x5e, 0xaa, 0x3b, 0xe8, 0x5e, 0x09, 0x90, 0x70,
      0x3d, 0x73, 0xe5, 0x6f]
      output-148

sha512-test:
  SECRET ::= #[
      0xb0, 0x32, 0x35, 0x23, 0xc1, 0x85, 0x35, 0x99,
      0x58, 0x4d, 0x88, 0x56, 0x8b, 0xbb, 0x05, 0xeb
  ]
  LABEL ::= "test label"
  SEED ::= #[
      0xd4, 0x64, 0x0e, 0x12, 0xe4, 0xbc, 0xdb, 0xfb,
      0x43, 0x7f, 0x03, 0xe6, 0xae, 0x41, 0x8e, 0xe5,
  ]

  output-196 := tls.pseudo-random-function_ 196 --block-size=sha.Sha512.BLOCK-SIZE --secret=SECRET --label=LABEL --seed=SEED:: sha.Sha512

  expect-equals #[
      0x12, 0x61, 0xf5, 0x88, 0xc7, 0x98, 0xc5, 0xc2,
      0x01, 0xff, 0x03, 0x6e, 0x7a, 0x9c, 0xb5, 0xed,
      0xcd, 0x7f, 0xe3, 0xf9, 0x4c, 0x66, 0x9a, 0x12,
      0x2a, 0x46, 0x38, 0xd7, 0xd5, 0x08, 0xb2, 0x83,
      0x04, 0x2d, 0xf6, 0x78, 0x98, 0x75, 0xc7, 0x14,
      0x7e, 0x90, 0x6d, 0x86, 0x8b, 0xc7, 0x5c, 0x45,
      0xe2, 0x0e, 0xb4, 0x0c, 0x1c, 0xf4, 0xa1, 0x71,
      0x3b, 0x27, 0x37, 0x1f, 0x68, 0x43, 0x25, 0x92,
      0xf7, 0xdc, 0x8e, 0xa8, 0xef, 0x22, 0x3e, 0x12,
      0xea, 0x85, 0x07, 0x84, 0x13, 0x11, 0xbf, 0x68,
      0x65, 0x3d, 0x0c, 0xfc, 0x40, 0x56, 0xd8, 0x11,
      0xf0, 0x25, 0xc4, 0x5d, 0xdf, 0xa6, 0xe6, 0xfe,
      0xc7, 0x02, 0xf0, 0x54, 0xb4, 0x09, 0xd6, 0xf2,
      0x8d, 0xd0, 0xa3, 0x23, 0x3e, 0x49, 0x8d, 0xa4,
      0x1a, 0x3e, 0x75, 0xc5, 0x63, 0x0e, 0xed, 0xbe,
      0x22, 0xfe, 0x25, 0x4e, 0x33, 0xa1, 0xb0, 0xe9,
      0xf6, 0xb9, 0x82, 0x66, 0x75, 0xbe, 0xc7, 0xd0,
      0x1a, 0x84, 0x56, 0x58, 0xdc, 0x9c, 0x39, 0x75,
      0x45, 0x40, 0x1d, 0x40, 0xb9, 0xf4, 0x6c, 0x7a,
      0x40, 0x0e, 0xe1, 0xb8, 0xf8, 0x1c, 0xa0, 0xa6,
      0x0d, 0x1a, 0x39, 0x7a, 0x10, 0x28, 0xbf, 0xf5,
      0xd2, 0xef, 0x50, 0x66, 0x12, 0x68, 0x42, 0xfb,
      0x8d, 0xa4, 0x19, 0x76, 0x32, 0xbd, 0xb5, 0x4f,
      0xf6, 0x63, 0x3f, 0x86, 0xbb, 0xc8, 0x36, 0xe6,
      0x40, 0xd4, 0xd8, 0x98]
      output-196
